Rohan Gavin Books

Meet Knightley and Son - two great detectives for the price of one ... Darkus Knightley is not your average thirteen-year-old: ferociously logical, super-smart and with a fondness for tweed, detect...

Knightley son

By Rohan Gavin

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A father and son detective team investigates the mystery surrounding a book that that makes its readers commit terrible crimes, and a sinister organization known as the Combination.

Knightley son

By Rohan Gavin

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Alan Knightley and his son, Darkus, thirteen, investigate a very unusual canine case that suggests there may be werewolves afoot, and that the sinister organization, the Combination, may be involved.

Knightley & son

By Rohan Gavin

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Alan Knightley and his son, Darkus, thirteen, investigate a very unusual canine case that suggests there may be werewolves afoot, and that the sinister organization, the Combination, may be involved.

3 of a kind

By Rohan Gavin

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Despite trying to leave his detective ways behind and wanting to lead a normal life, when his father's loyal housekeeper, Bogna, goes missing, Darkus must return to the family fold to solve the mys...

Knightley Son

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Knightley and Son

By Rohan Gavin

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K 9

By Rohan Gavin

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.